Zillow Dataset API
Property listings, home values, rental prices, and real estate market data for housing market intelligence.
Available Data
Here's what you can extract from Zillow using AlterLab:
Business Use Cases
How businesses use Zillow data to make better decisions:
- Real estate market analysis
- Investment property research
- Rental market monitoring
- Property value trend tracking
How It Works
Specify your target properties or search area
Provide Zillow property detail URLs (for specific listings) or Zillow search URLs (for a geographic area with filters). Each Zillow property has a unique ZPID in its URL — a stable identifier for tracking specific properties over time.
AlterLab bypasses Zillow's data protection
Zillow loads property data, Zestimate values, and price history asynchronously. AlterLab renders the full page using a browser environment that triggers all data-loading scripts, capturing the complete property profile as a visitor would see it.
Get comprehensive property market data
Receive listing price, Zestimate, price history, property details (beds, baths, sqft), tax history, neighborhood statistics, and days on market — all structured for real estate analysis or investment scoring models.
Key Insight
Zillow's Zestimate uses a machine learning model updated regularly. Properties listed for sale typically have more frequently updated Zestimates than off-market properties. For investment analysis, combining the listing price with Zestimate and days-on-market gives a signal of whether a property is priced competitively.
Data Freshness
Active listing prices and status should be monitored daily — properties go from active to pending quickly in competitive markets. Zestimates update weekly for most properties. Tax and price history are historical records that need only be collected once per property.
Sample Output
Here's exactly what you receive when you collect Zillow data with AlterLab — clean, structured JSON ready for your application or spreadsheet.
{
"url": "https://www.zillow.com/homedetails/123-maple-st/12345678_zpid/",
"zpid": "12345678",
"address": "123 Maple St, Austin, TX 78701",
"price": 485000,
"zestimate": 491200,
"bedrooms": 3,
"bathrooms": 2,
"sqft": 1842,
"lot_size_sqft": 6098,
"year_built": 2004,
"status": "For Sale",
"days_on_market": 12,
"price_history": [
{
"date": "2026-06-13",
"price": 499000,
"event": "Listed"
},
{
"date": "2026-06-20",
"price": 485000,
"event": "Price reduced"
}
],
"hoa_fee": 120,
"property_type": "Single Family",
"scraped_at": "2026-06-25T09:42:11Z"
}Quick Start
POST https://alterlab.io/api/v1/scrape
X-API-Key: YOUR_API_KEY
{
"url": "https://zillow.com/...",
"advanced": { "render_js": true }
}Need an API key? — no credit card required. 5,000 requests included.
Pricing at Scale
AlterLab uses pay-as-you-go pricing — no monthly minimums, no contracts. Balance never expires.
| Volume | Static pages | JS-rendered pages |
|---|---|---|
| 1,000 requests | $0.20 | $2.00 |
| 10,000 requests | $2.00 | $20.00 |
| 100,000 requests | $20.00 | $200.00 |
| 1,000,000 requests | $200.00 | $2,000.00 |
Static pages: $0.0002/request · JavaScript-rendered pages (like Zillow): $0.002/request · First 5,000 requests free. Full pricing details →
Frequently Asked Questions
What property data can I get from Zillow?
You can extract publicly visible property data including listing prices, home details (beds, baths, sqft), Zestimate values, price history, and neighborhood information from any Zillow listing page.
Can I monitor property prices across a region?
Yes. By collecting data from Zillow search results for specific areas, you can build comprehensive market datasets for investment analysis or market reports.
Is this useful for real estate investors?
Absolutely. Investors use AlterLab to track listing prices, rental yields, and market trends across multiple areas simultaneously, enabling data-driven investment decisions.
Related Use Cases
Responsible Use
AlterLab is designed for extracting publicly available data. Always review the terms of service for any website you access, respect robots.txt directives, and ensure your use case complies with applicable laws in your jurisdiction.
Data Extraction Guides
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Pricing
From $0.0002/request. No subscriptions. Balance never expires.
Your first scrape.
Sixty seconds.
$1 free credit — up to 5,000 scrapes. No credit card.
Just a POST request.
No credit card required · $1 free credit, up to 5,000 scrapes · Balance never expires